Image projections

1. A system, comprising: a camera to scan a plurality of projection areas; a processor to: in response to detecting an obstacle or a shadow in a first projection area of the plurality of projection areas, decline to select the first projection area based on a criterion that relates to presence of an obstacle or a shadow, control the camera to continue scanning for another projection area in response to declining to select the first projection area, select a second projection area of the plurality of projection areas based on the criterion, wherein the second projection area is free from an obstacle and a shadow, present, to a user, an indication of the selection of the second projection area based on the criterion, receive, from the user responsive to the presented indication, a rejection of the second projection area, and in response to the rejection, select a third projection area of the plurality of projection areas based on the criterion, wherein the third projection area is free from an obstacle and a shadow; and a projector to project an image to the third projection area based on the selection of the third projection area by the processor, wherein the projector is to receive the image from a computing unit and instructions to project the image onto the third projection area, and wherein the camera is to capture an input and provide the input to the computing unit that causes the computing unit to update the image based on the input.

2. The system of claim 1 , wherein the camera and the projector are located in a housing.

3. The system of claim 2 , wherein the housing comprises a lighting fixture.

4. The system of claim 1 , wherein the camera is to rotate up to 360 degrees to identify the plurality of projection areas, and the projector is to rotate up to 360 degrees to project the image.

5. The system of claim 1 , further comprising a touch sensitive mat, wherein when the third projection area falls on the touch sensitive mat, the projector is to project the image onto the touch sensitive mat.

6. The system of claim 5 , wherein the touch sensitive mat is communicatively coupled to the computing unit, and the input is responsive to a user interacting with the touch sensitive mat.

7. The system of claim 1 , further comprising a microphone to receive the input from a user, wherein the input comprises a voice command.

8. The system of claim 7 , wherein the processor is to request a confirmation from the user regarding acceptance of the second third projection area.

9. The system of claim 1 , wherein the image projected on the third projection area is manipulated based on the input from a user.

10. The system of claim 1 , wherein, during a remote collaboration with a further system, the computing unit is to cause the projector to project the image onto the third projection area, the projected image including an image of physical content received from the further system as well as digital content, the computing unit including a display on which a video image from the further system is to be displayed.

11. The system of claim 1 , wherein: the projector is to project a home automation interface onto the third projection area to allow the user to interact with a home automation system, and the camera is to capture commands from the user to be implemented on the home automation system.

12. A system, comprising: a camera to scan a plurality of projection surfaces; a computer to: in response to detecting an obstacle or a shadow in a first projection surface of the plurality of projection surfaces, decline to select the first projection surface based on a criterion that relates to presence of an obstacle or a shadow, control the camera to continue scanning for another projection surface in response to declining to select the first projection surface, select a second projection surface of the plurality of projection surfaces based on the criterion, wherein the second projection surface is free from an obstacle and a shadow, present, to a user, an indication of the selection of the second projection surface based on the criterion, receive, from the user responsive to the presented indication, a rejection of the second projection surface, and in response to the rejection, select a third projection surface of the plurality of projection surfaces based on the criterion, wherein the third projection surface is free from an obstacle and a shadow; and a projector to project an image onto the third projection surface, wherein the computer is to cause the camera to scan a physical object placed on the third projection surface to produce a scanned image, and to cause the projector to project the scanned image onto the third projection surface.

13. The system of claim 12 , further comprising a plurality of cameras, at least one camera of the plurality of cameras being used for depth detection, and at least two cameras of the plurality of cameras being used for stereoscopic stylus tracking.

14. A method, comprising: scanning, by a camera, a plurality of projection areas; in response to detecting an obstacle or a shadow in a first projection area of the plurality of projection areas, declining, by a processor, to select the first projection area based on a criterion that relates to presence of an obstacle or a shadow; controlling, by the processor, the camera to continue scanning for another projection area in response to declining to select the first projection area; selecting, by the processor, a second projection area of the plurality of projection areas based on the criterion, wherein the second projection area is free from an obstacle and a shadow; presenting, by the processor to a user, an indication of the selection of the second projection area based on the criterion; receiving, by the processor from the user responsive to the presented indication, a rejection of the second projection area; in response to the rejection, selecting, by the processor, a third projection area of the plurality of projection areas based on the criterion, wherein the third projection area is free from an obstacle and a shadow; projecting, by a projector, an image onto the third projection area; capturing input related to the projected image; and updating the projected image based on the captured input.

15. The method of claim 14 , further comprising performing alignment and calibration to refine the third projection area.

16. The system of claim 1 , wherein the camera is to capture an image of a physical object on the third projection area, and provide the image of the physical object to the computing unit, and wherein the computing unit is to cause projection by the projector of the image of the physical object on the third projection area.

17. The system of claim 16 , wherein the camera is to capture a further image of user interaction with the image of the physical object on the third projection area, and provide the further image to the computing unit, and wherein the computing unit is to, in response to the further image, cause the projector to change a displayed image on the third projection area.

18. The system of claim 12 , wherein the camera is to capture a further image of user interaction with the scanned image of the physical object on the third projection surface, and provide the further image to the computer, and wherein the computer is to, in response to the further image, cause the projector to change a displayed image on the third projection surface.

19. The method of claim 14 , further comprising: capturing, by the camera, an image of a physical object on the third projection area; providing, by the camera, the image of the physical object to the processor; causing, by the processor, the projector to project the image of the physical object on the third projection area.

20. The method of claim 19 , further comprising: capturing, by the camera, a further image of user interaction with the projected image of the physical object on the third projection area; providing, by the camera, the further image to the processor; and in response to the further image, causing, by the processor, the projector to change a displayed image on the third projection area.